Extended Data Fig. 7: Failed scenario 7, a modelled increase in CO₂, a moderate increase in uplift, a change in the global erosion to silicate weathering ratio and an increase in mantle-like unradiogenic Os.

Panels a–g are parameter changes and panels h–p are key model results as detailed for Main Fig. 3. In all panels (apart from e, j and m) the black line is the model average and the grey band is the ±1σ. In panels m and p the blue line and band are from Main Fig. 2.